Fig. 1: Peptoid sequences and their assembled nanotube structures.
From: Highly stable and tunable peptoid/hemin enzymatic mimetics with natural peroxidase-like activities
a Molecular and schematic representations of peptoid sequences and its co-assembly with hemin into nanotube morphology. b Side chain and terminal modifications of peptoid sequences. c AFM image of showing the co-assembled nanotube structure of Pep-1 (R1 = Nbrpm, R2 = Nce, R3 = Npyr, n = 6) and hemin. The inset shows the height the nanotube is around 7.8 nm. d TEM image showing the Pep-1/hemin nanotube with a width of 29.6 ± 3.6 nm and a wall thickness of 3.8 ± 0.6 nm based on at least 50 counts. e XRD spectrum of Pep-1/hemin nanotube. The value above each peak is calculated based on the equation d = 2π/q.
